One-pot cascade reactions of 1-arylpenta-3,4-dien-2-ones leading to 2-arylphenols and dibenzopyroanones

Abstract

A one-pot cascade reaction of 1-arylpenta-3,4-dien-2-ones with activated ketones allowed for an efficient and sustainable synthesis of 2-arylphenols. Moreover, this reaction was also found to be compatible and combinable with Pd-catalyzed C–H activation and carbonylation of the in situ formed 2-aryl phenols, thus resulting in a highly convenient and atom-economic synthesis of dibenzopyranones.